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Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
Bioplastics01:27

Bioplastics

Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
The Phosphorus Cycle01:21

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.

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Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter
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Polylactic Acid-Based Biodegradable Room-Temperature Phosphorescent Materials: A Review.

Nianshuang Zhang1, Yujing Qin1, Haoyi Ma1

  • 1State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Province Key Laboratory of High-Performance Rubber Materials and Engineering, Qingdao University of Science & Technology, Qingdao, P. R. China.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|May 23, 2026
PubMed
Summary

Polylactic acid (PLA) offers a sustainable matrix for organic room-temperature phosphorescence (RTP) materials. These novel PLA-based RTP materials show promise for advanced applications, overcoming typical degradation issues.

Keywords:
3D printinganti‐counterfeitingorganic room temperature phosphorescencephotoactive printing processpolylactic acid

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Published on: October 24, 2017

Area of Science:

  • Materials Science
  • Organic Chemistry
  • Polymer Science

Background:

  • Polylactic acid (PLA) is a renewable, biodegradable, and biocompatible polymer.
  • Pure organic room-temperature phosphorescence (RTP) materials are desirable for various applications.
  • Photocuring processes often lead to the degradation of RTP properties.

Purpose of the Study:

  • To investigate the preparation and luminescence mechanisms of PLA-based RTP materials.
  • To evaluate the potential of PLA as a matrix for enhancing RTP performance.
  • To explore applications of these novel materials in bioimaging, information encryption, and 3D printing.

Main Methods:

  • Chemical grafting and physical doping strategies were employed to create PLA-based RTP materials.
  • Luminescence mechanisms within the PLA matrix were analyzed.
  • Application potential was assessed, focusing on overcoming photocuring degradation.

Main Results:

  • PLA matrix properties are crucial for activating and enhancing RTP performance.
  • PLA-based RTP materials demonstrate improved stability against degradation.
  • Successful demonstration of PLA-based RTP for potential bioimaging, encryption, and 3D printing.

Conclusions:

  • PLA is an ideal matrix for developing stable, pure organic RTP materials.
  • These materials offer a promising solution for applications requiring robust phosphorescence.
  • Future research directions for PLA-based RTP materials are outlined.